If you are not receiving the code on Microsoft Authenticator app, make sure Push notification is enabled, and follow the ...

To enable the passwordless feature for your Microsoft account, you first have to add the Microsoft Authenticator app. After that, you will be able to enable the passwordless mode for your account.

Microsoft Authenticator is a two-factor authentication program that provides added security to your online accounts in the form of an app. It's a competitor to other two-factor authentication programs ...